I think I would first see if you can heal
the jaw better than it sounds right now
before having the wisdom teeth pulled, but
since they're impacted, you're probably
going to have to do it. To me it sounds
like your jaw has not yet completely
healed from when you yawned. We're
talking muscles, ligaments and cartilage
and that can take time. Be as gentle to
your jaw as you can for another month or
so.
Eating, smoking and talking will tire and
irritate the injured jaw during the day
and that's probably why you have more pain
as the day goes on. Try talking less (use
a sign that tells people your jaw is
sprained.

Also, make sure
not to clench. The basic rule is to keep
you teeth apart at all times, tongue
resting on roof of mouth and lips together
or slightly apart, relaxed. Be careful
what you eat - softer foods and/or liquids
are a must.
Ask your doctor or dentist to give you a
referral for physical therapy or find a
good massage therapist (cranial-sacral,
pressure point, deep tissue, etc.) If you
can, find one who does intra-oral massage.
This can be wonderful - painful when done
but it should last only for a few minutes
anyway.
I would have used ice to reduce the
swelling, but moist heat is a wonderful
thing too. You might add Super Vitamin B
Complex to your daily diet for healing.
And lastly, watch your posture. How you
hold your neck, jaw and head doing certain
activities can greatly affect the
ligaments and muscles of the jaw.
Stretched jaw ligaments if becoming more
and more of a problem. When sitting in
front of a computer or desk, do NOT slump
your head forward towards the monitor or
pull your chin up to see.
Give yourself more time to heal. Go see
another OS for a 2nd opinion or even get a
3rd (the money IS worth it). If you
decide to get the teeth removed after more
healing, do some exercises first to get
your jaw/mouth into shape (You-Tube has a
good video if you type in TMJ) and then
make sure that the OS knows you just had a
TMJ episode and will be particularly
gentle when cutting out the teeth and not
keep your mouth open too wide too long.
Let us know how you do.
God bless...
Carol